#include <bits/stdc++.h>
#define pii pair<int,int>
#define pb push_back
#define ll long long
#define MOD 1000000007
#define all(x) x.begin(),x.end()
#define MOD2 998244353
using namespace std;
void solve(int cas){
int n,m; cin>>n>>m;
vector<ll> people(n), bank(m);
for (auto& a: people) cin>>a;
for (auto& a: bank) cin>>a;
vector<vector<ll>> sm(1001);
for (int i = 1; i < (1<<m); i++){
ll s = 0;
for (int j = 0; j < m; j++){
if ((i>>j)&1) s+=bank[j];
}
sm[s].emplace_back(i);
}
vector<vector<bool>> dp(n+1, vector<bool> (1<<m));
for (int i = 0; i < (1<<m); i++) dp[n][i] = true;
for (int i = n - 1; i >= 0; i--){
for (int mask = 0; mask < (1<<m); mask++){
for (ll m1: sm[people[i]]){
if ((m1&mask)==0){
dp[i][mask] = (dp[i][mask] || dp[i+1][mask|m1]);
}
}
}
}
cout << (dp[0][0] ? "YES" : "NO") << '\n';
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout.tie(NULL);
int t = 1;
//cin>>t;
for (int i = 1; i <= t; i++){
solve(i);
}
return 0;
}
